Rectangular speaker with enclosure & wires
Oval speaker with wires.
Used on current production SDN144A0, SDN144A1 & SDN144PS sound decoders.
Round speaker with wires.
Used on current production SDN144K0A and SDN144K1E sound decoders.
Used on current production SFX004, SFX064D, SDH164D & SDH164K1A sound decoders.
Used on current production SFX0416 sound decoders.